beynolds



(No Model.) 2 Sheets- Sheet 1.

G. H. REYNOLDS.

I AUX I LIARY STEAM POWER FOR SAILING VESSELS; 110.278.1232. PatentedMay 22,1883.

hl'hzesses (No Model.) 2 Sheets-Sheet 2. G. H. REYNOLDS.

AUXILIARY $TEAM POWER FOR SAILING VESSELS.

Patented May 22,1883.

Wal er -/ZM W ZZZ UNITED STATES PATENT OFFIC GEORGE H. REYNOLDS, OF NEWYORK, N. Y., ASSIGNOR OF TWO-THIRDS TO CORNELIUS H. DELAMATER AND GEORGEROBINSON, OF SAME PLACE.

AUXILIARY STEAM-POWER FOR SAlLlNG-VESSELS.

SPECIFICATION forming part of Letters Patent No. 278,182, dated May 22,1883.

Application filed May 31, 1882.

To all whom it may concern:

Be it known that 1,Gnonen HJREYNOLDS, of the city and county of NewYork, in the State of New York, have invented certain new and usefulImprovements in Applying Auxiliary Steam-Power to Sailing-Vessels, ofwhich the following is a specification.

There are some kinds of sailing-vesscls such, for instance, as steamWhalers and yachts to which it is desired to apply auxiliarysteam-propulsion for the purpose of propelling them during calms, andalso to assist them at times while under sail. i

The difficulties heretofore experienced in the application ofsteam-propulsion to such ves-' sels have been numerous. It has beendifficult to so arrange the propeller that it will offer no materialobstacle to the movement of the vessel when under sail, and with thisobject in view theenginc hasin some cases .been disconnected from thepropeller-shaft, so that the propeller and its shaft could turn freelywhen the vessel is under sail. In other cases the propeller has been soarranged and supported as to afford provision for raisin g it out of thewater when the vessel is to be put under sail; and in still other cases.the propeller has been provided with two adjustable blades, which couldbe feathered or turned to a position in which they would offer the leastresistance to the sailing of the vessel. Another ditiiculty attendingthe adoption of auxiliary steam-power for fore and aft riggedsailingvessels-such as schooners-has been that the smoke-stack, ifcarried up through the deck between the masts, would interfere with thejibing of the fore and aft sails.

The objects of my invention are to overcome these difficulties, and toprovide a very simple and effective arrangement for auxiliarypropulsion, which may be applied effectively to fore and aft riggedvessels and these objects have been so fully attained by my inventionthat it has been applied to several sailing-vessels which are now insuccessful use.

The invention consists in the combination, with a sailing-vessel, of apropeller supported a p in rear of the stern-post in such manner as tobe incapable ofmovement lengthwise of the (No model.)

.acting on the propeller-shaft for locking the propeller in suchposition that its blades will be maintained in a position behind thesternpost when it is desired toproeeed under sail alone. p

The invention also consists in the combination, with a 'fore and aftrigged sailing-vessel, of a propeller for auxiliary propulsion, adrivingengine, a boiler for supplying steam thereto, and a hollow mastserving as a smoke-stack for the boiler, whereby I enable auxiliarypropulsion to be applied without in the least interfering with theworking of the fore and aft sails. 6

In the accompanying drawings, Figure 1 represents a partly sectionalelevation of a sailing-vessel fore and aft rigged and embodying myarrangement for auxiliary steam-propulsion. Fig. 2 represents a sideview of the propeller and its shaft with means for locking it, and anoutline of the stern portion of the ves sel on a larger scale. Fig. 3represents a plan of the means employed to lock the shaft. Fig. 4represents an elevation of the stern on the same scale as Fig. 2; andFig. 5 represents a transverse section of the propeller-shaft and thekeel or lower portion of the vessel, illus trating another arrangementof devices forlocking the shaft.

Similar letters of reference designate corresponding parts in all thefigures.

A designates the hull of the vessel, and A designates the stern-postthereof.

B designates the screw-propeller; G, the 8 propeller-shaft; I), theengine for operating said shaft and propeller, and E the boiler forsupplying steam to said engine.

I have chosen for purposes of illustration a schooner which is fore andaft rigged, and the mizzen-mast F is hollow and has the smokepipe of theboiler connected with it, so as to serve the purpose of a smoke-stack.This construction is particularly desirable for a fore and aft riggedvessel, as a smoke-stack projecting upward through the deck and betweenthe masts would interfere with the working or jibing of the fore and aftsails. The propeller B is arranged behind or outside of the stern-postA, and is maintained in fiXed relation to the length of the vessel. Thepropeller B has only two blades, which are rigidly fixedthereto, and itis of such fine pitch that when turned to bring the blades into avertical position they will be nearly or entirely concealed orshieldedbehind the stern-post A, and will not offer any materialobstacle to the movement of the vessel when under sail. The stern-post Aneed be no wider than is just sufficient to shield the propeller. Thepropeller B is of unusually large diameter, for the reason that it isnecessary to get the required surface when the pitch is so fine, and bymaking it of large diameter and fine pitch I provide a sufficientsurface without preventing the shielding of the propeller by thestern-post. WVith reference to the amount of surface necessary, I wouldsay that the resisting-power of the water acted upon is increased as thesquare of the speed. In other words, suppose that apropeller-wheelhaving fifty feet of surface and turned fifty revolutionsper minute is necessary for the vessel. Such a propeller would beimpracticable, because it would not be shielded behind the stern-post,and would offer a great resistance to the movement of the vessel undersail; but if I use a propeller having only twelve and onehalf squarefeet of surface, and turn it one hundred revolutions a minute, itseffective action on the water in moving the vessel forward will beprecisely the same as with the larger propeller turned at half thespeed. It will therefore be understood that the propeller B must be ofsuch diameter and fineness of pitch that the effective surface can behad with a blade so narrow as to be entirely or nearly concealed orshielded behind the stern -post of the vessel. WVhen thepropeller isturned so that it is shielded behind the stern-post, it is necessary tolock the shaft 0 securely to prevent thepropeller and shaft from turninginto a position in which the propeller will obstruct the movement of thevessel. Any suitable (levices may be employed for this purpose. In

Figs. 2 and 3, I have represented the shaft as mounted in a bearing, G,and provided with a pry-wheel or crank, 0, having a number of sockets,in any one of which may be inserted a locking dog or bar, I), which isarranged in a holder, 0, projecting from the bearing G. In lieu of thislocking arrangement, I may secure a Wheel or drum, d, upon the shaft 0and apply thereto a brake-strap, G which may be tightened or loosened bya lever and nut, e, as clearly shown in Fig. 5.

From the foregoing description it will be understood that the vesselwill move under sail as well as if she had no steam-power, and, whennecessary, goes under steam as if 'she had no sails.

In speaking of the width of the propellerblades I mean their extensionlaterally from a center line.

\Vhat I claim as my invention, and desire to secure by Letters Patent,is-- 1. The combination, with a sailing-vessel, of a propeller supportedin rear of the stern post in such manner as to be incapable of movementlengthwise of the vessel, having two blades of approximately the sameWidth as the stern-post, and devices acting on the propellershaft forlocking the propeller in such position that its blades will bemaintained in a position behind the stern-post when desired,substantially as herein described.

2. The combination, with a fore and aft rigged sailing-vessel, of apropeller for auxiliary propulsion, a driving-engine, a boiler forsupplying steam thereto, and a hollow mast, serving as a smoke-stack forthe boiler without interfering with the jibing of the fore and aftsails, substantially as and for the purpose herein described.

eno. n. REYNOLDS.

Witnesses:

THOS. J. MoCABE, HARRY F. LYTLE.

